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FreezeTool: Don't write blobinfo to wrong offset

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The mechanism for searching for a specific symbol in a Mach-O binary got
tripped up when hitting the blobinfo stab entry, causing it to return an
offset of 0.
This commit is contained in:
Donny Lawrence 2020-04-24 18:05:16 -05:00 committed by rdb
parent f3c0fa06b3
commit 46ae5a52d3
1 changed files with 3 additions and 1 deletions
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4
direct/src/dist/FreezeTool.py vendored
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@ -2153,7 +2153,9 @@ class Freezer:
symoff += nlist_size symoff += nlist_size
name = strings[strx : strings.find(b'\0', strx)] name = strings[strx : strings.find(b'\0', strx)]
if name == b'_' + symbol_name: # If the entry's type has any bits at 0xe0 set, it's a debug
# symbol, and will point us to the wrong place.
if name == b'_' + symbol_name and type & 0xe0 == 0:
# Find out in which segment this is. # Find out in which segment this is.
for vmaddr, vmsize, fileoff in segments: for vmaddr, vmsize, fileoff in segments:
# Is it defined in this segment? # Is it defined in this segment?